recompute tlen per round. add code to limit sector reads in continuous mode to ensure that we don't try to read across tracks in C/H/S modes.
recompute tlen per round. add code to limit sector reads in continuous
mode to ensure that we don't try to read across tracks in C/H/S modes.

joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib